CN104420817B - Retractable self-locking ladder - Google Patents
Retractable self-locking ladder Download PDFInfo
- Publication number
- CN104420817B CN104420817B CN201310396490.7A CN201310396490A CN104420817B CN 104420817 B CN104420817 B CN 104420817B CN 201310396490 A CN201310396490 A CN 201310396490A CN 104420817 B CN104420817 B CN 104420817B
- Authority
- CN
- China
- Prior art keywords
- block piece
- support frame
- bench
- armrest part
- armrest
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
- E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
- E06C1/12—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/06—Securing devices or hooks for parts of extensible ladders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention discloses a kind of retractable self-locking ladder, be in bench topmost in some bench and form the first bench, two armrest parts in first bench are socketed respectively to be inserted in support frame and can be positioned in support frame and stretch out slidably and retraction: support frame is made up of the first support frame and the second support frame, and lateral surface is along its length provided with the first block piece at least one support frame in the first support frame and the second support frame; First bench comprises the first armrest part and the second armrest part, first armrest part and the second armrest part are provided with second block piece corresponding with the first block piece, second block piece stretches out outside support frame, first block piece and the second block piece can backstops mutually, and the second block piece can be in the both sides of the first block piece in the first bench glide direction.This ladder can effectively avoid bench topmost to skid off from support frame, guarantees that use is safer.<!--1-->
Description
Technical field
The present invention relates to ladder, relate to a kind of retractable self-locking ladder particularly.
Background technology
Yacht or ship, when pulling in shore or other situations exist, often can use the ladder with Telescopic, and its specific practice is, is fixedly placed on yacht by the support frame of ladder, by longitudinal for ladder vertical elongation, so supply librarian use.But there is following defect in use in this kind of ladder at present: due to this rocking in aquatic environment of yacht, cause uppermost bench to be easy to skid off from support frame and cause security incident.
Summary of the invention
In order to overcome above-mentioned defect, the invention provides a kind of retractable self-locking ladder, this ladder can effectively avoid bench topmost to skid off from support frame, guarantees that use is safer.
The present invention in order to the technical scheme solving its technical problem and adopt is: a kind of retractable self-locking ladder, comprise several bench, each bench includes two armrest parts and the stampeding section being connected two armrest parts, with user to for benchmark, next adjacent bench can be stretched out and retract in a upper bench, be in bench topmost in described some bench and form the first bench, two armrest parts in described first bench are socketed respectively to be inserted in support frame and can be positioned in this support frame and stretch out slidably and retraction:
Described support frame is made up of the first support frame and the second support frame, and lateral surface is along its length provided with the first block piece at least one support frame in described first support frame and the second support frame;
Described first bench comprises the first armrest part and the second armrest part, described first armrest part and the second armrest part are provided with second block piece corresponding with the first block piece, second block piece stretches out outside support frame, first block piece and the second block piece can backstops mutually, and the second block piece can be in the both sides of the first block piece in the first bench glide direction.
Further improve as the present invention:
Described first support frame and a second support frame side is along its length run through respectively and is provided with chute; Two chutes at grade;
Described first block piece and the second block piece all cylindrical, described first block piece is fixed positioned in described support frame by the first bearing pin and is provided with on a lateral surface of chute; Described second block piece activity is stretched out chute and is fixed positioned in the top of armrest part by the second bearing pin.
Further improve as the present invention:
In first block piece and the second block piece, at least one is flexible, and described first block piece and the second block piece can be crossed mutually in elasticity extruding.
Beneficial effect of the present invention: by arranging two block pieces respectively on support frame lateral surface and contiguous with support frame and corresponding armrest part; Further, by block piece one of wherein arranges rubber elastic material, the first block piece and the second block piece can be crossed mutually in elasticity extruding again, can realize backstop locking like this, can firmly place after making ladder collapses.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of retractable self-locking ladder of the present invention.
Fig. 2 is the lateral view of retractable self-locking ladder of the present invention.
Detailed description of the invention
By reference to the accompanying drawings, elaborate to the present invention, but protection scope of the present invention is not limited to following embodiment, the simple equivalence namely in every case done with the present patent application the scope of the claims and description changes and modifies, and all still belongs within patent covering scope of the present invention.
The retractable self-locking ladder of the present embodiment, please refer to shown in Fig. 1, comprise several bench, each bench includes two armrest parts 2 and the stampeding section 5 being connected two armrest parts 2, with user to for benchmark, next adjacent bench can be stretched out and retract in a upper bench.Wherein, be in bench topmost and form the first bench in some bench, two armrest parts in the first bench are socketed respectively to be inserted in support frame 1 and can be positioned in this support frame 1 and stretch out slidably and retraction.Further, support frame 1 is made up of the first support frame 11 and the second support frame 12, first support frame 11 and the second support frame 12 are and are provided with uncovered rectangle frame structure, and open position is arranged in opposite directions, lateral surface is along its length provided with the first block piece 3 at least one support frame in the first support frame 11 and the second support frame 12.
First bench comprises the first armrest part 21 and the second armrest part 22, first armrest part 21 and the second armrest part 22 are provided with second block piece 4 corresponding with the first block piece 3, second block piece 4 stretches out outside support frame 1, first block piece 3 and the second block piece 4 can backstops mutually, and can to there is certain frictional force in the first block piece 3 and the second block piece 4 mutually cross, shown in figure 1, second block piece 4 can be in left side or the right side of the first block piece 3, when being in left side, for released state, namely uppermost bench can not surprisingly skid off support frame 1; Be self-locking state when being in right side.
Shown in composition graphs 2, the first support frame 11 and the second support frame 12 side along its length run through respectively and is provided with chute 13, and two chutes 13 are at grade, object be facilitate armrest part by pull-out abreast with retract.First block piece 3 and the second block piece 4 all cylindrical, the first block piece 3 is fixed positioned in support frame 1 by the first bearing pin and is provided with on a lateral surface of chute 13; Second block piece 4 activity is stretched out chute 13 and is fixed positioned in the top of armrest part by the second bearing pin.In first block piece 3 and the second block piece 4, at least one is flexible, and the first block piece 3 and the second block piece 4 can be crossed mutually in elasticity extruding, if two distance of center circle when the first block piece 3 and the second block piece 4 contact with each other are from the radius sum being less than the first block piece 3 and the second block piece 4, its objective is that by the mutual extruding of elastomeric material be damping state, thus facilitate self locking safety.In first block piece 3 and the second block piece 4, at least one is along circumference side surrounding one deck rubber of its cylinder, realizes damping action by the extruding between rubber and rubber.
Claims (3)
1. a retractable self-locking ladder, comprise several bench, each bench includes two armrest parts (2) and the stampeding section (5) being connected two armrest parts, with user to for benchmark, next adjacent bench can be stretched out and retract in a upper bench, be in bench topmost in described some bench and form the first bench, two armrest parts in described first bench are socketed respectively to be inserted in support frame (1) and can be positioned in this support frame and stretch out slidably and retraction, it is characterized in that:
Described support frame is made up of the first support frame (11) and the second support frame (12), and lateral surface is along its length provided with the first block piece (3) at least one support frame in described first support frame and the second support frame;
Described first bench comprises the first armrest part (21) and the second armrest part (22), described first armrest part and the second armrest part are provided with second block piece (4) corresponding with the first block piece, second block piece stretches out outside support frame, first block piece and the second block piece can backstops mutually, and the second block piece can be in the both sides of the first block piece in the first bench glide direction.
2. retractable self-locking ladder according to claim 1, is characterized in that:
Described first support frame and a second support frame side is along its length run through respectively and is provided with chute (13); Two chutes (13) at grade;
Described first block piece and the second block piece all cylindrical, described first block piece is fixed positioned in described support frame by the first bearing pin and is provided with on a lateral surface of chute (13); Described second block piece activity is stretched out chute and is fixed positioned in the top of armrest part by the second bearing pin.
3. retractable self-locking ladder according to claim 1 and 2, is characterized in that:
In first block piece and the second block piece, at least one has elasticity, and described first block piece and the second block piece can be crossed mutually in elasticity extruding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310396490.7A CN104420817B (en) | 2013-09-04 | 2013-09-04 | Retractable self-locking ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310396490.7A CN104420817B (en) | 2013-09-04 | 2013-09-04 | Retractable self-locking ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104420817A CN104420817A (en) | 2015-03-18 |
| CN104420817B true CN104420817B (en) | 2016-04-20 |
Family
ID=52970857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310396490.7A Expired - Fee Related CN104420817B (en) | 2013-09-04 | 2013-09-04 | Retractable self-locking ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104420817B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202227970U (en) * | 2011-06-30 | 2012-05-23 | 中联重科股份有限公司 | Movable ladder for vehicle |
| CN203462998U (en) * | 2013-09-04 | 2014-03-05 | 昆山元达精密机电工业有限公司 | Telescopic self-locking ladder |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08158768A (en) * | 1994-12-01 | 1996-06-18 | Kazuchika Sakamoto | Ladder exclusively designed for car roof |
| US6708800B2 (en) * | 2002-08-02 | 2004-03-23 | Core Distribution, Inc. | Extending ladder and associated manufacturing methods |
| ITMI20051028A1 (en) * | 2005-06-01 | 2006-12-02 | Douglas Marine Srl | RETRACTABLE LIFTING SYSTEM WITH RETRACTABLE LADDER FOR BOARDING BOATS |
-
2013
- 2013-09-04 CN CN201310396490.7A patent/CN104420817B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202227970U (en) * | 2011-06-30 | 2012-05-23 | 中联重科股份有限公司 | Movable ladder for vehicle |
| CN203462998U (en) * | 2013-09-04 | 2014-03-05 | 昆山元达精密机电工业有限公司 | Telescopic self-locking ladder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104420817A (en) | 2015-03-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |